20767985

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{19141}}^1$

素因数の和:19184

約数の個数: 16

約数和(自身を含む): 29402112

約数和(自身を除く): 8634127

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 19141, 95705, 133987, 593371, 669935, 2966855, 4153597, 20767985]

約数ペア:

[(1, 20767985), (5, 4153597), (7, 2966855), (31, 669935), (35, 593371), (155, 133987), (217, 95705), (1085, 19141)]